CA1250332A - Connector - Google Patents
ConnectorInfo
- Publication number
- CA1250332A CA1250332A CA000466550A CA466550A CA1250332A CA 1250332 A CA1250332 A CA 1250332A CA 000466550 A CA000466550 A CA 000466550A CA 466550 A CA466550 A CA 466550A CA 1250332 A CA1250332 A CA 1250332A
- Authority
- CA
- Canada
- Prior art keywords
- component
- boss
- keeper
- annular
- ledge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000463 material Substances 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims description 6
- 230000005489 elastic deformation Effects 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 238000010618 wire wrap Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 241000209761 Avena Species 0.000 description 1
- 235000007319 Avena orientalis Nutrition 0.000 description 1
- 101100378101 Caenorhabditis briggsae ace-4 gene Proteins 0.000 description 1
- 101100264195 Caenorhabditis elegans app-1 gene Proteins 0.000 description 1
- XDXHAEQXIBQUEZ-UHFFFAOYSA-N Ropinirole hydrochloride Chemical compound Cl.CCCN(CCC)CCC1=CC=CC2=C1CC(=O)N2 XDXHAEQXIBQUEZ-UHFFFAOYSA-N 0.000 description 1
- PXUQTDZNOHRWLI-OXUVVOBNSA-O malvidin 3-O-beta-D-glucoside Chemical compound COC1=C(O)C(OC)=CC(C=2C(=CC=3C(O)=CC(O)=CC=3[O+]=2)O[C@H]2[C@@H]([C@@H](O)[C@H](O)[C@@H](CO)O2)O)=C1 PXUQTDZNOHRWLI-OXUVVOBNSA-O 0.000 description 1
- 229920000136 polysorbate Polymers 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
- F16B37/04—Devices for fastening nuts to surfaces, e.g. sheets, plates
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62B—DEVICES, APPARATUS OR METHODS FOR LIFE-SAVING
- A62B9/00—Component parts for respiratory or breathing apparatus
- A62B9/04—Couplings; Supporting frames
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
- F16B21/10—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts
- F16B21/16—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft
- F16B21/18—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details
- F16B21/186—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings by separate parts with grooves or notches in the pin or shaft with circlips or like resilient retaining devices, i.e. resilient in the plane of the ring or the like; Details external, i.e. with contracting action
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L31/00—Arrangements for connecting hoses to one another or to flexible sleeves
- F16L31/02—Arrangements for connecting hoses to one another or to flexible sleeves for branching hoses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/32—Articulated members
- Y10T403/32606—Pivoted
- Y10T403/32631—Universal ball and socket
- Y10T403/32729—Externally packed
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Pulmonology (AREA)
- General Health & Medical Sciences (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Clamps And Clips (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
ABSTRACT
A system for connecting an annular, rigid component to an opening in a flexible sheet material is disclosed. The system includes a boss molded around the opening in the sheet material and a groove around the component, sized to accommodate the boss.
An annular keeper engages the boss circumferentially under hoop stress and compresses the boss against the component. A ledge on the component engages the keeper to retain it in operating position. In preferred embodiments, installation is assisted with a tapered face leading to the ledge, to produce elastic deformation of the keeper to the extent that it will pass over the boss and then snap back once past the ledge.
A system for connecting an annular, rigid component to an opening in a flexible sheet material is disclosed. The system includes a boss molded around the opening in the sheet material and a groove around the component, sized to accommodate the boss.
An annular keeper engages the boss circumferentially under hoop stress and compresses the boss against the component. A ledge on the component engages the keeper to retain it in operating position. In preferred embodiments, installation is assisted with a tapered face leading to the ledge, to produce elastic deformation of the keeper to the extent that it will pass over the boss and then snap back once past the ledge.
Description
1;~5~332 The p~esent invention relat,es to the secure and l,eakproof connection of annular riyid componerlts to openincjs in fl,exible sheet materials or the 'ike. The component may be used, for example, as a mount for the conlponents of a gas mask/ e.g. a breathing valve, eyepiece or Eilter canister. Other applicatiorls are in inflatable life ~acke~s and ~oats anfl in flexible or collapsible oontainers.
Th~ current technlquc for connectir1g annular rigid components to flexible sheets 'co prov:ide tne deslre~1 sealing and strength characteristics requi,res the mol(~inq of a -tubular sleeve into the sheet around the o~)enin~3. The annular component is placed in the sleeve and the sleeve is compressed against the outside of the cornponent with a wire wrapping or a metal band clamp. This system i3 not entirely satisfactory. ~1ire wrapping requires considerab]e skill and care to install properly. With a b~nd clamp, there is a gap at the barld ends that i5 a discontinui-ty in the circumferertia:L compress1on of ~he tube and thus a possible source of leakage. It is also necessary to cover the band ends to prevent damage to 'he sheet material.
'~he present invention aims at the pr-ovision o~ an improved component connec-ting system that is simple al;d rugged and less subject to failure through h~m1an error in insl~allation.
Accordirl~ to the present inventlorl ther- is ~rovided a system for connecting an annular, r:iy}d component to an opellirlg in a flexible sheet material, comprislng:
a) a boss molded around the opel1ing in the sheet material, 125~33.32 b) a groove around the comporlent to accommodate the bos~;
c) an anular keeper adapted to engage the bos~
circ~mferentially uncler hoop ~tres~s ~o ~ to compress the bvss against the componerlt, and d) a 7edge on the component for engagin~ the annular keeper to retain the keeper in compres3ing relation on the boss.
In use, it is relati~ely easy to :locate the boss in fhe groove in the component. The annular keeper, when installed, secures the 'D03S in the groove and compresses an annular band around the boss undex uniform compression. ~he connection is resistant to ruugh handling while insuring a leak proof joint.
In preferred em.bodiments, the component has a tapered annular surface adjacent the ledg~ over which the annular Xeeper can be pressed during insta.Lla-tion. Once the keeper has passed the ledge, it w.ill relax onto the boss to compres~ the boss onto the component.
In most embodimenrs the gro~ve w~17 be formed on the external surface of the annular component. It is however, possible to provide an alternative arrangement with an internal groove.
The preferred Xeeper is metal as this provides a very secure and virtually permanent installati.on. The component may be metal or a plastic materi.al according to the requirements of the particular app1.icati.on.
~;~5~3;32 In the accompanyin~ draw:ings, which iLlustrate to prior art systems and an exemplary embodilrerlt o ~he presen~ inventic~n:
Fiyure 1 is a diametral cross section of one prior art system;
Figure 2 is a plan ~iew or a prior art ~and clamp, Fi~ure 3 i5 an e~ploded view in a~ial suction of a connecting system according to the present invention;
Figure 4 is a view of the connecting system of Figure 3, partia~ly assembled; and Fi,gure 5 is a vie~ of the connecting system of Fi~ures 3 and 4 fully as~emb~ed.
Referring to the accompanyin~ drawings, Figure 1, illustra-tes a prior art connectinc.; sys-tern in whic'h a wire wrapping is used to secure an annular component to a f]exible sheet material. As illustrated in that Figure, a 1exible sheet mat~rial is formed wit~ a tubular sleeve 4, around arl opening 6 in the material. A rigid annular component ~ is located in the tube 4 ancl a wrapping of soft wire 10 is ~70und around the tube ~ to compress it onto the component. The illustra-ted component 8 is internally threaded at 12 to serve as a mount for a gas mask canister.
The system illustr~ted in E'igure 1, i~ di:~ficult to install satisfactorily. The wire wrappinq must be wound, twisted, flattened and eventually covered w:ith protective tape to provide not only a continllous compression of the ~,ube 4 a~ainst ~he component 8 but also a su~ficiently robust mechanical connection between the tube and the component.
Figure 2 illustrates a metal band clamp 14 that is sometimes used in p1ace of the ~.Yire wrapplny 10 of the ~igure 1 system. The clamp 14 consists of a me'al band 16 formed in~o a circular shape with two ends 18 bent outwards and joined ~ a machine screw and a nut 22. In use, the ~and clamp is placed over the tube 4 in place of the wire wrapping and tightened in place by turning the screw 20 in the nut 22. As will be apparent this leaves a gap in the band of compresslvn on the tube at the point 24 where the two ends of the band are spaced apart. The connecting system is prone to leakage at this point. Becau~e ~he band ends 1~ and the screw 22 anc] nut 20 are, when exposed, likely to damage the sheet material 2, a sleeve ~6 o rubber or the like material is install~d over that part of the clamp fol- protective purposes.
Turning now to Figure 3 of the accompanying dra~ings, there is illustrated an embodiment o the present in~ention showing the components of -the system ~efor~ assemDling. The sheet material 'has a circular opening 32 surrounded by an annula~ bos~
34. The annular rigid component 36 to be secured to the ~hee-t material 39 has an annular groove 3B in an external surface that is of substantially the same dimerlsions as the boss 34 so as to accommodate ~he boss with a snug fit. Adjacent the groove 38 and facing towards it is a ledge 40 formed by a shallow step in the outer surface of the component 36. An annular ~apered surfac2 ~2 widens from the erld of the component 36 to the ledge 40. As with the component illustra-ted in Figure l, the component 36 is internally threaded at 44 to acco~nodate a gas mask canister. l'he ~5~33Z
remaining element of the system illustrated iII Figure 3 :is an annul.ar keep~r 46 that has an i.nternal diam~ter slight.ly less than the maximum diameter of tapered s~lr~ace 4~ and les5 th~n the outside diameter of the boss 34. The diffel-ence be-tween the axial.
length of the ~eeper 46 and the spacing between the ledge 4g and the opposing fac~ of the groove 38 is slightly less than the thickness of the shee~ material 30. The eEfect of this will be described in connection with Figure 5.
Figllre 4 of t.he acco~lpanying drawings illustrates the system of Figure 3 partially installed. I:n Figure 4, the component 36 has been assembled wit-n the sheet mater.ial 30. The boss 38 of the sheet materlal has been seated ful~y w.ithin the groove 38. BecAuse of the rela~ively stiff nature and fixed dimensions of the bo55 34 when cornp~red with the flexib.le tube used in the prior art system of Figures 1 and 2, location of the boss in the groove 38 is relatively easily and accurately done.
E'igure 5 illustra~es the system complet~ly installed.
In this Figure, the keeper 46 has been forced over the tapered surface 42 which expands the keeper 46 circumLerent.ially but within its e]astic limit. After passi.ng over the l.edge 40 the keeper contracts to engage behind the ledge and to compress the boss 34 against the groove 38. The keeper 46 remains ~nder the hoop stress to ensure a good circumferential seal between the boss 34 and the component 36. The keeper 46 also compresses the sheet material 30 against. the side of the groove confron-ting t.he ledge 40 as illustrated at 48 in Figure 5~
The instalLed system as illustra~ed in Fi~ure 5 pro~ides 5~33~2 a simple, easily installed connection between the component 36 and the she~t material 30. The joint produced is mechanically robust and leak proof.
While one embodiment of the present invention has been described in the foregoinq, it is to be ul~derstood that other embodiments can be constructed within the terms of the i.nvention.
For example, it is possible to construct embodiments of the system in ~Ihich the groove in the annular rigid component was internal.
The annular keeper could be compressed as it passed over an internal tapered surface lead.ing to the retaining ledge.
Th~ current technlquc for connectir1g annular rigid components to flexible sheets 'co prov:ide tne deslre~1 sealing and strength characteristics requi,res the mol(~inq of a -tubular sleeve into the sheet around the o~)enin~3. The annular component is placed in the sleeve and the sleeve is compressed against the outside of the cornponent with a wire wrapping or a metal band clamp. This system i3 not entirely satisfactory. ~1ire wrapping requires considerab]e skill and care to install properly. With a b~nd clamp, there is a gap at the barld ends that i5 a discontinui-ty in the circumferertia:L compress1on of ~he tube and thus a possible source of leakage. It is also necessary to cover the band ends to prevent damage to 'he sheet material.
'~he present invention aims at the pr-ovision o~ an improved component connec-ting system that is simple al;d rugged and less subject to failure through h~m1an error in insl~allation.
Accordirl~ to the present inventlorl ther- is ~rovided a system for connecting an annular, r:iy}d component to an opellirlg in a flexible sheet material, comprislng:
a) a boss molded around the opel1ing in the sheet material, 125~33.32 b) a groove around the comporlent to accommodate the bos~;
c) an anular keeper adapted to engage the bos~
circ~mferentially uncler hoop ~tres~s ~o ~ to compress the bvss against the componerlt, and d) a 7edge on the component for engagin~ the annular keeper to retain the keeper in compres3ing relation on the boss.
In use, it is relati~ely easy to :locate the boss in fhe groove in the component. The annular keeper, when installed, secures the 'D03S in the groove and compresses an annular band around the boss undex uniform compression. ~he connection is resistant to ruugh handling while insuring a leak proof joint.
In preferred em.bodiments, the component has a tapered annular surface adjacent the ledg~ over which the annular Xeeper can be pressed during insta.Lla-tion. Once the keeper has passed the ledge, it w.ill relax onto the boss to compres~ the boss onto the component.
In most embodimenrs the gro~ve w~17 be formed on the external surface of the annular component. It is however, possible to provide an alternative arrangement with an internal groove.
The preferred Xeeper is metal as this provides a very secure and virtually permanent installati.on. The component may be metal or a plastic materi.al according to the requirements of the particular app1.icati.on.
~;~5~3;32 In the accompanyin~ draw:ings, which iLlustrate to prior art systems and an exemplary embodilrerlt o ~he presen~ inventic~n:
Fiyure 1 is a diametral cross section of one prior art system;
Figure 2 is a plan ~iew or a prior art ~and clamp, Fi~ure 3 i5 an e~ploded view in a~ial suction of a connecting system according to the present invention;
Figure 4 is a view of the connecting system of Figure 3, partia~ly assembled; and Fi,gure 5 is a vie~ of the connecting system of Fi~ures 3 and 4 fully as~emb~ed.
Referring to the accompanyin~ drawings, Figure 1, illustra-tes a prior art connectinc.; sys-tern in whic'h a wire wrapping is used to secure an annular component to a f]exible sheet material. As illustrated in that Figure, a 1exible sheet mat~rial is formed wit~ a tubular sleeve 4, around arl opening 6 in the material. A rigid annular component ~ is located in the tube 4 ancl a wrapping of soft wire 10 is ~70und around the tube ~ to compress it onto the component. The illustra-ted component 8 is internally threaded at 12 to serve as a mount for a gas mask canister.
The system illustr~ted in E'igure 1, i~ di:~ficult to install satisfactorily. The wire wrappinq must be wound, twisted, flattened and eventually covered w:ith protective tape to provide not only a continllous compression of the ~,ube 4 a~ainst ~he component 8 but also a su~ficiently robust mechanical connection between the tube and the component.
Figure 2 illustrates a metal band clamp 14 that is sometimes used in p1ace of the ~.Yire wrapplny 10 of the ~igure 1 system. The clamp 14 consists of a me'al band 16 formed in~o a circular shape with two ends 18 bent outwards and joined ~ a machine screw and a nut 22. In use, the ~and clamp is placed over the tube 4 in place of the wire wrapping and tightened in place by turning the screw 20 in the nut 22. As will be apparent this leaves a gap in the band of compresslvn on the tube at the point 24 where the two ends of the band are spaced apart. The connecting system is prone to leakage at this point. Becau~e ~he band ends 1~ and the screw 22 anc] nut 20 are, when exposed, likely to damage the sheet material 2, a sleeve ~6 o rubber or the like material is install~d over that part of the clamp fol- protective purposes.
Turning now to Figure 3 of the accompanying dra~ings, there is illustrated an embodiment o the present in~ention showing the components of -the system ~efor~ assemDling. The sheet material 'has a circular opening 32 surrounded by an annula~ bos~
34. The annular rigid component 36 to be secured to the ~hee-t material 39 has an annular groove 3B in an external surface that is of substantially the same dimerlsions as the boss 34 so as to accommodate ~he boss with a snug fit. Adjacent the groove 38 and facing towards it is a ledge 40 formed by a shallow step in the outer surface of the component 36. An annular ~apered surfac2 ~2 widens from the erld of the component 36 to the ledge 40. As with the component illustra-ted in Figure l, the component 36 is internally threaded at 44 to acco~nodate a gas mask canister. l'he ~5~33Z
remaining element of the system illustrated iII Figure 3 :is an annul.ar keep~r 46 that has an i.nternal diam~ter slight.ly less than the maximum diameter of tapered s~lr~ace 4~ and les5 th~n the outside diameter of the boss 34. The diffel-ence be-tween the axial.
length of the ~eeper 46 and the spacing between the ledge 4g and the opposing fac~ of the groove 38 is slightly less than the thickness of the shee~ material 30. The eEfect of this will be described in connection with Figure 5.
Figllre 4 of t.he acco~lpanying drawings illustrates the system of Figure 3 partially installed. I:n Figure 4, the component 36 has been assembled wit-n the sheet mater.ial 30. The boss 38 of the sheet materlal has been seated ful~y w.ithin the groove 38. BecAuse of the rela~ively stiff nature and fixed dimensions of the bo55 34 when cornp~red with the flexib.le tube used in the prior art system of Figures 1 and 2, location of the boss in the groove 38 is relatively easily and accurately done.
E'igure 5 illustra~es the system complet~ly installed.
In this Figure, the keeper 46 has been forced over the tapered surface 42 which expands the keeper 46 circumLerent.ially but within its e]astic limit. After passi.ng over the l.edge 40 the keeper contracts to engage behind the ledge and to compress the boss 34 against the groove 38. The keeper 46 remains ~nder the hoop stress to ensure a good circumferential seal between the boss 34 and the component 36. The keeper 46 also compresses the sheet material 30 against. the side of the groove confron-ting t.he ledge 40 as illustrated at 48 in Figure 5~
The instalLed system as illustra~ed in Fi~ure 5 pro~ides 5~33~2 a simple, easily installed connection between the component 36 and the she~t material 30. The joint produced is mechanically robust and leak proof.
While one embodiment of the present invention has been described in the foregoinq, it is to be ul~derstood that other embodiments can be constructed within the terms of the i.nvention.
For example, it is possible to construct embodiments of the system in ~Ihich the groove in the annular rigid component was internal.
The annular keeper could be compressed as it passed over an internal tapered surface lead.ing to the retaining ledge.
2~
Claims (6)
PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. A system for connecting an annular, rigid component to an opening in a flexible sheet material, comprising:
a) a boss molded around the opening in the sheet material;
b) a groove around the component to accommodate the boss;
c) an annular keeper adapted to engage the boss circumferentially under hoop stress so as to compress the boss against the component; and d) a ledge on the component for engaging the annular keeper to retain the keeper in compressing relation on the boss.
a) a boss molded around the opening in the sheet material;
b) a groove around the component to accommodate the boss;
c) an annular keeper adapted to engage the boss circumferentially under hoop stress so as to compress the boss against the component; and d) a ledge on the component for engaging the annular keeper to retain the keeper in compressing relation on the boss.
2. A system according to claim 1, including an annular tapered surface on the component ending at the ledge.
3. A system according to claim 2, wherein the groove and the tapered surface are external.
4. A system according to claim 1, 2 or 3, wherein the component is metal.
5. A system according to claim 1, 2 or 3, wherein the component is a plastic material.
6. A system according to claim 1, 2 or 3, wherein the keeper is metal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000466550A CA1250332A (en) | 1984-10-29 | 1984-10-29 | Connector |
| US06/746,861 US4626122A (en) | 1984-10-29 | 1985-06-20 | Connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000466550A CA1250332A (en) | 1984-10-29 | 1984-10-29 | Connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1250332A true CA1250332A (en) | 1989-02-21 |
Family
ID=4129028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000466550A Expired CA1250332A (en) | 1984-10-29 | 1984-10-29 | Connector |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US4626122A (en) |
| CA (1) | CA1250332A (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4852916A (en) * | 1988-01-19 | 1989-08-01 | Johnson Keith D | High temperature vacuum probe |
| US4917353A (en) * | 1988-11-15 | 1990-04-17 | The Boeing Company | Vacuum probe and method |
| DE3839378C1 (en) * | 1988-11-22 | 1990-04-19 | Jean Walterscheid Gmbh, 5204 Lohmar, De | |
| GB2276565B (en) * | 1993-04-02 | 1997-03-12 | Jsp Ltd | Improvements relating to face mask filters |
| FR2779783B1 (en) * | 1998-06-12 | 2000-09-01 | Peugeot | DEVICE FOR FIXING A HYDRAULIC UNIT, ESPECIALLY AN ANTI-LOCK BRAKE SYSTEM, IN THE ENGINE COMPARTMENT OF A MOTOR VEHICLE |
| DE10314999B3 (en) * | 2003-04-02 | 2004-12-23 | Rasmussen Gmbh | Joint sleeve for a clamp |
| PL2129443T3 (en) | 2007-03-23 | 2018-07-31 | 3M Innovative Properties Company | Respirator flow control apparatus and method |
| JP5543221B2 (en) * | 2007-03-23 | 2014-07-09 | スリーエム イノベイティブ プロパティズ カンパニー | Air delivery device for respiratory hood |
| WO2009045674A1 (en) * | 2007-10-05 | 2009-04-09 | 3M Innovative Properties Company | Respirator flow control apparatus and method |
| US20110265790A1 (en) * | 2007-10-05 | 2011-11-03 | Garry J Walker | Respirator Hose and Attachment Apparatus and Method |
| EP2217333B1 (en) * | 2007-11-12 | 2019-02-27 | 3M Innovative Properties Company | Respirator assembly with air flow direction control |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1194397A (en) * | 1958-04-11 | 1959-11-09 | Device for assembling eyelet elements | |
| US3208290A (en) * | 1962-10-22 | 1965-09-28 | Gen Motors Corp | Ball joint purgeable seal means |
| US3506289A (en) * | 1966-12-02 | 1970-04-14 | Ehrenreich & Cie A | Bellows packings for universally movable joints,especially for ball joints |
-
1984
- 1984-10-29 CA CA000466550A patent/CA1250332A/en not_active Expired
-
1985
- 1985-06-20 US US06/746,861 patent/US4626122A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US4626122A (en) | 1986-12-02 |
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